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Solution against Various Substation Requirementolution against Various Substation Requirement

with as Insulation Technologies

ith as Insulation Technologies

(Tokyo, Japan)(Tokyo, Japan)

CIGRE Romania, CIGRE Study CommitteeCIGRE Romania, CIGRE Study Committee B3:B3:

SubstationsSubstations

RomaniaRomania

April, 2008April, 2008

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1. Solution for Substation Application1. Solution for Substation Application

2. Solution for Substation in Urban Area2. Solution for Substation in Urban Area

3. Substation Refurbishment3. Substation Refurbishment

4. Latest Achievement4. Latest Achievement

CONTENTSCONTENTS

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1. Solution for Substation Application1. Solution for Substation Application

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1)Economical1)Economical

Expensive LandExpensive Land

2)Physical2)Physical

(Geographical)(Geographical)

Congested AreaCongested Area

Mountain AreaMountain Area

Coastal / RiversideCoastal / Riverside

MuddyMuddy

1.Combine with1.Combine with

building, parking,building, parking,public spaces etcpublic spaces etc

2.Combine with2.Combine with

TransmissionTransmission

TowerTower

1)Mobile1)Mobile

2)Combine2)Combine

Substation Space

a) No Space

Available

b) Limited Space

c) Enough Space

Available

Requirement

a) New

b) Refurbish/Replace

c) Extension/Uprating

Solution for Substation ApplicationSolution for Substation Application

1.Digging2.In/On/Under

Building

3.Reclamation

4.Floating

1)Gas Insulated1)Gas Insulated

2)Air Insulated2)Air Insulated

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1)Indoor1)Indoor

2)Outdoor2)Outdoor

Surroundings

a) Climate

Dry / Wet (Humid)

Polluted / Coastalb) Ambient Temperature

Nominal

Extremely Hot (i.e > 40deg)

Extremely Cold (i.e

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Substation in Urban Area

1)Economical1)EconomicalExpensive LandExpensive Land

2)Physical2)Physical

(Geographical)(Geographical)

Congested AreaCongested Area

Mountain AreaMountain AreaCoastal / RiversideCoastal / Riverside

MuddyMuddy

1)Mobile1)Mobile

2)Combine2)Combine

1.Digging

2.In/On/Under

Building3.Reclaiming

4.Floating

1)Gas Insulated1)Gas Insulated

2)Air Insulated2)Air Insulated

1)Indoor1)Indoor

2)Outdoor2)Outdoor

1.Combine with1.Combine with

building, parking,building, parking,

public spaces etcpublic spaces etc

2.Combine with2.Combine withTransmission TowerTransmission Tower

Mobile SS (PreMobile SS (Pre-- Fabricated)Fabricated)On TrailerOn Trailer

On Ship / VergeOn Ship / Verge

On Rig (i.e. oil / naturalOn Rig (i.e. oil / natural

gas plant on the sea)gas plant on the sea)

Compact SSCompact SS

Underground SSUnderground SS

Complex Building SSComplex Building SS

SS under TransmissionSS under Transmission

TowerTower

Indoor AIS SSIndoor AIS SS

Outdoor AIS SSOutdoor AIS SS

Indoor GIS SSIndoor GIS SS

Outdoor GIS SSOutdoor GIS SS

Solution for Substation ApplicationSolution for Substation Application

Hybrid SSHybrid SS

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Type of Switchgears (AIS / Hybrid / GIS) ~ 1Type of Switchgears (AIS / Hybrid / GIS) ~ 1

Conventional AISConventional AIS Hybrid GISHybrid GIS GISGISIn airIn air In airIn air In SF6 gasIn SF6 gasMain BusMain Bus

DistributedDistributed Highly integratedHighly integratedArrangement ofArrangement of

EquipmentEquipment

ExposedExposed Fully enclosedFully enclosed

Exposure of LiveExposure of Live

PartsParts

LargeLarge SmallSmallOverall Land AreaOverall Land Area

Less than GISLess than GIS --Equipment CostEquipment Cost

Outline of mainOutline of main

componentcomponent

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Type of Switchgears (AIS / Hybrid / GIS) ~ 2Type of Switchgears (AIS / Hybrid / GIS) ~ 2

Conventional AISConventional AIS

Hybrid GISHybrid GIS

Full GISFull GIS

Area (mArea (m22))

AISAIS HH--GISGIS GISGIS

5,6965,696

(100%)(100%)3,7763,776

(66%)(66%)882882

(15%)(15%)

Volume (mVolume (m22))227,840227,840

(100%)(100%)151,040151,040

(66%)(66%)12,34812,348

(5%)(5%)

(550kV SS, 1(550kV SS, 1--1/2CB system)1/2CB system)

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GISAIS

Live

Livetank

Dead

tank

GCB +

Physical Integration

GCB+DS/ES GCB+DS/ES+BusAir insulation

Scope of SF6 Gas Insulation

Hybrid Switchgear

OCBABB

Hybrid Breaker Technical ClassificationHybrid BreakerHybrid BreakerTechnical ClassificationTechnical Classification

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400kV Hybrid GIS (60Hz)400kV Hybrid GIS (60Hz)

CustomerCustomer

CountryCountry

Installed atInstalled at

Installed inInstalled in

: SEC: SEC--ERBERB

: Saudi Arabia: Saudi Arabia

:: HawiyahHawiyah SSSS

: 2001: 2001

Rated VoltageRated Voltage

Rated CurrentRated Current

Rated Breaking CurrentRated Breaking Current

: 380kV: 380kV

: 3150A: 3150A

: 50kA: 50kA

ESES

GCB DSDSBgBg

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2.Solution for Substation in Urban Area2.Solution for Substation in Urban Area

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Solution for Substation in Urban AreaSolution for Substation in Urban Area

Space LimitationSpace Limitation

--

under building, parking, public spaces, etc.under building, parking, public spaces, etc.

SafetySafety-- NonNon--flammability and nonflammability and non--explosive featuresexplosive features

Environmental ConformityEnvironmental Conformity-- OilOil--free & lessfree & less--pollution, minimum visual impact, Lowpollution, minimum visual impact, Low--noise, etc.noise, etc.

Economical SolutionEconomical Solution-- Less construction costs, less maintenance & operation costs, etLess construction costs, less maintenance & operation costs, etc.c.

Requirement for Substation in Urban Area

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Underground SubstationUnderground Substation-- Substation under office building, historical architects in theSubstation under office building, historical architects in the limited spacelimited space

Compact Substation with GIS and GITCompact Substation with GIS and GIT--Compact and nonCompact and non--flammable substation with GIS and GITflammable substation with GIS and GIT

(Gas Insulated Transformers)(Gas Insulated Transformers)

Environmental Consideration TechnologyEnvironmental Consideration Technology-- Minimum visual impact, LowMinimum visual impact, Low--noise, etc.noise, etc.

ToshibaToshibas Solution for Substation in Urban Areas Solution for Substation in Urban Area

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Compact Substation with GIS & GITCompact Substation with GIS & GIT

150MVA150MVA--275kV275kV

Shunt ReactorShunt Reactor

300MVA300MVA--275kV GIT275kV GIT GISGIS

GITGIT

GIBGIB

Underground SubstationUnderground Substation

GIS RoomGIS Room

TransformerTransformer

RoomRoomOil TransformerOil Transformer

ConservatorConservator

PressurePressure

ReliefRelief

DeviceDevice

Oil PitOil Pit

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20MVA20MVA--66kV GIT66kV GIT

entilation duct

Low pressure, Indoor type,

Direct GIS connection

MODEL OF GIS & GIT SUBSTATIONMODEL OF GIS & GIT SUBSTATION

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OIT(Oil Immersed

Transformer)GIT(Gas Insulated

Transformer)

COMPARISON BETWEEN OIT AND GITCOMPARISON BETWEEN OIT AND GIT

Construction of OIT and GIT

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COMPARISON BETWEEN OIT AND GIT SUBSTATIONCOMPARISON BETWEEN OIT AND GIT SUBSTATION

Fire fighting and alarm systemSubstation with GIS and OIT

High Ceiling

Gravel Filling / Oil Catch Pit

Underground Oil Storage Tank

Underground Water Tank

Fire Wall

Substation with GIT and GIT

REDUCTION OF

TOTAL VOLUME

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0

20

40

60

80

100

0 0.2 0.4 0.6 0.8 1

Faul t Time [sec]

PressureRise[%]

Tank Strength

Oil-Immersed Transformer

Gas Insulated Transformer

Safety ~ NonSafety ~ Non--Flammable & ExplosivenessFlammable & Explosiveness

SF6 GasSF6 Gas Slow Pressure RiseSlow Pressure Rise NonNon--ExplosivenessExplosiveness

Non Flammable GasNon Flammable Gas NonNon--FlammableFlammable

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275kV Underground Substation under Temple275kV Underground Substation under Temple

275/66kV GIS275/66kV GIS TransformersTransformers

Buddhist TempleBuddhist Temple

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275kV Underground Substation under275kV Underground Substation under OffceOffce BuildingBuilding

300MVA300MVA--275kV275kV

Gas Insulated Transformer (GIT)Gas Insulated Transformer (GIT)

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500kV Underground Substation in Central Tokyo500kV Underground Substation in Central Tokyo

Office buildingOffice building

Underground SubstationUnderground Substation

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3. Substation Refurbishment3. Substation Refurbishment

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Old AIS Installation AreaOld AIS Installation Area

(400/220kV)(400/220kV)After Installation of GISAfter Installation of GIS

(400/220kV)(400/220kV)

AISAIS37,000m37,000m22

(100%)(100%)

GISGIS15,000m15,000m22

(40%)(40%)

Substation Replacement in RomaniaSubstation Replacement in Romania

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Old AISOld AIS

ExposureExposure of l ive partsof l ive parts

LiveLive tank enclosurestank enclosures

GISGIS

No exposureNo exposure of l ive partsof live parts

DeadDead tank enclosurestank enclosures

Substation Replacement in RomaniaSubstation Replacement in Romania

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Refurbishment from AIS SS to GIS SSRefurbishment from AIS SS to GIS SS

Before Replacement : Air Insulated Substation (72kV)

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Empty Space

Refurbishment from AIS SS to GIS SSRefurbishment from AIS SS to GIS SS

Before Replacement : Air Insulated Substation (72kV)

Conforming to Kyoto Protocol & subsequent agreementsupported world widely regarding CO2 reduction wil l require

environmental-friendly solution more strictly. This solution will

contribute to fulfill such requirement even in the T&D area.

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4. Latest Achievement4. Latest Achievement

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Barron Gorge Hydro PSBarron Gorge Hydro PSGIT ApplicationGIT Application

Old OITOld OIT

New 39MVANew 39MVA--132kV GIT132kV GIT

ReplacementReplacement

Hydro PS in World Heritage AreaHydro PS in World Heritage Area

Prevention from Oil Influx into RiversPrevention from Oil Influx into Rivers

Application of GITApplication of GIT

Barron Gorge Hydro PSBarron Gorge Hydro PS(STANWELL, Australia)(STANWELL, Australia)

In 2005In 2005

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Environmental Conformity of Gas Insulated TransformersEnvironmental Conformity of Gas Insulated Transformers

(from local newspaper, in 2005)(from local newspaper, in 2005)

Environmental conformity of Barron Hydro Power Station was improEnvironmental conformity of Barron Hydro Power Station was improvedved

by 39MVA Gas Insulated Transformer.by 39MVA Gas Insulated Transformer.

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Conceptual view of Haymarket 330/132kV substationConceptual view of Haymarket 330/132kV substation(at Sydney Australia by(at Sydney Australia by TransgridTransgrid ))

World Largest GIT SubstationWorld Largest GIT Substation

Office building is constructed above SS.

Inlets & Outlets of Tr air cooling system are on the roof floor.

Office building is constructed above SS.

Inlets & Outlets of Tr air cooling system are on the roof floor.

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Picture after completionPicture after completion

New SubstationNew Substation

Haymarket Substation, AustraliaHaymarket Substation, Australia

SH k S b i A li

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400MVA400MVA--330kV330kV

Gas InsulatedGas Insulated

TransformerTransformer

(World(World

s Largest GIT)s Largest GIT)

Customer :Customer : TransGridTransGrid (Australia)(Australia)

Substation : Haymarket SSSubstation : Haymarket SS

No. of units : 3No. of units : 3

Year of manufacture : in 2002Year of manufacture : in 2002

Haymarket Substation, AustraliaHaymarket Substation, Australia

C l i S l i f V i S b iC l i S l ti f V i S b t ti

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Conclusion ~ Solutions for Various SubstationsConclusion ~ Solutions for Various Substations

Limited SpaceLimited Space Higher SafetyHigher Safety EnvironmentEnvironment CostCost--SavingSaving

Solutions with Gas Insulation TechnologiesSolutions with Gas Insulation Technologies

DemandsDemands

Gas Insulated Transformers (GIT)Gas Insulated Transformers (GIT) Gas Insulated Switchgears (GIS)Gas Insulated Switchgears (GIS)

Compact SolutionCompact Solution

Substation in Urban AreaSubstation in Urban Area

Substation RefurbishmentSubstation Refurbishment

FailFail--Safe SolutionSafe Solution

NonNon--flammabilityflammability

NonNon--explosivenessexplosiveness

Economical SolutionEconomical Solution

Easier installationEasier installation

Easier maintenanceEasier maintenance

FeaturesFeatures